How to protect a crypto exchange account with passkeys
Passkeys replace your exchange password with your device unlock and can approve withdrawals where supported. Register a backup device to avoid lockout.

On this page
- Your device or password manager keeps the passkey.
- Add a backup passkey before you need one.
- A passkey replaces your password, not every check.
- Review withdrawal allowlists and set activity alerts.
A passkey is a sign-in credential your phone or password manager keeps. It stays under your device unlock.
What to know before you start
A passkey replaces the password you type at login with the device unlock you already use, such as a fingerprint, face scan, or PIN. Where your exchange allows it, the same passkey can approve a withdrawal, so a stolen password is not enough. Support and rules differ between exchanges, so check both before you start.
How to add a passkey to your exchange
Menu names differ, so look for words like security, login, or sign-in. Keep your password until the passkey works.
- 1Open security settingsFind the section labeled security or login and look for a passkey option.
- 2Add the passkeySelect create a passkey and follow the prompt your device shows.
- 3Confirm with device unlockUse your fingerprint, face scan, or PIN, then wait for the exchange to confirm.
- 4Test the sign-inSign out and back in with the passkey so you know it works.
- 5Register a backup deviceRepeat the steps on a second device or in a password manager, so a lost phone does not lock you out.
Records and account safety after setup
Store your recovery codes and a backup sign-in method offline, out of reach of a hacked email account. Then look at the withdrawal side of your account.
Frequently asked questions
Yes. You can register a passkey on each device, or keep one in a syncing password manager.
Use a long, unique password with app-based two-factor authentication and withdrawal allowlists. Support is added over time.
It usually replaces the password you type, though your exchange may still confirm a withdrawal by email.
Open your security settings and choose the passkey to delete. Add the replacement first.






